High School

I’m in 10th grade right now and super interested in WUSTL but I know that it’s prestigious and tough to get into. My school doesn’t have GPAs but my average is only around a 94. My SAT in 8th grade was 1690 and my PSAT10 scores are equivalent to around a 1940. I want my grades and scores to go higher but what I’m most worried about is extra curricular activities. I have 2 years left so what should I do for that portion of my application in the future to look better? I’ll soon have a position in the yearbook committee and I do tons of community service but that’s about it. I hope someone can help because WUSTL is my dream school.